- #1
depre87
- 8
- 0
Homework Statement
http://imageshack.us/photo/my-images/855/10544781.png/
Homework Equations
a=[r''-r0'^2]er+[r0'' + 2r'0']e0 where 0 = theta
The Attempt at a Solution
stumped about it, I've tried setting the above to 0 then work out r which is 200 m but that's just cluelessly subbing values into the equation, any directions as to where to head? thanks!